Like any other person, I give more emphasis on average packages to judge a particular course or an Institute. Here, the average package of Metallurgy at IIT Madras is INR 15 LPA whereas that of ECE at IIT Hyderabad is INR 29 LPA.
Now, many people may not find the average package justifiable criteria to judge a course. For them, I have listed some points about both institutes and they are free to make a decision based on what appeals to them the most.
IIIT Hyderabad
IIT Madras
All in all, IIT Madras offers a more laid back experience while IIIT Hyderabad strictly focuses on core studies.